ScienceDemos.org
  • Physics
    • Motion
    • Waves
    • Energy
    • Force and Gravity
    • Light and Colour
    • Simple Machines
    • Density
    • Sound
    • Magnetism
    • Pressure
    • Heat
    • Electricity and Electrostatics
    • Air and Fluids
    • Nuclear / Particle Physics
    • Van de Graaff Generator
  • Chemistry
    • Gases
    • Particles and States
    • Crystals, Salts and Ions
    • Atoms and the Periodic Table
    • Chemical Quantities and Calculations
    • Water, Solubility and Surface Tension
    • Elements, Compounds and Mixtures
    • Catalysts and Enzymes
    • Reaction Rate, Equilibrium and Thermochemistry
    • Separating Mixtures
    • Combustion
    • Organic Chemistry
    • Metals and Alloys
    • Explosions
    • Materials and Polymers
    • Redox
    • Colour Changes
    • Food Chemistry
    • Electrochemistry
    • Acids and Bases
  • Biology
    • Ecosystems and the Environment
    • Cells and Microscopes
    • The Brain and Body Coordination
    • Plants
    • Disease
    • Body Systems
    • Classification
    • Reproduction
    • Dissections
    • Genetics and DNA
    • Natural Selection and Evolution
  • Other Science
    • Scientific Method
    • Dry Ice
    • Rocks, Minerals and Fossils
    • Forensics
    • Liquid Nitrogen
    • Mining and Resources
    • The Solar System
    • Science Show Demos
    • Plate Tectonics and Volcanoes
    • The Universe
    • Demos For Special Occasions
    • Global Systems and Weather
  • About
    • About ScienceDemos.org
    • Safety
    • Login
    • Contact
    • Privacy
RecommendRecommend PrintPrint



Hydrolysing Starch With Saliva

Materials
2
Difficulty
2
Safety
1
Starch (or bread) is tested with Iodine, adding saliva breaks down the starch into glucose and the black colour fades.
  • Notes
    Can also warm with Benedict's reagent to test for glucose.
  • Web Links
    biologyjunction.com/amylase_on_starch_lab.htm
    Author : Biology Junction
    Description :
    rbascienceunveiled.blogspot.com.au/2012/11/test-for-digestion-of-starch-by-saliva.html
    Author : Science Unveiled
    Description :
  • Videos
    www.youtube.com/watch?v=cZyq4koUCNM
    Author : Jordan Mifsud
    Description :
    www.youtube.com/watch?v=wRVVDq__E0Q
    Author : Daria Maliesky
    Description :
  • Categories
    Catalysts and Enzymes | Body Systems | Organic Chemistry
Materials
1: Easy to get from supermarket or hardware store
2: Available in most school laboratories or specialist stores
3: Requires materials not commonly found in school laboratories

Difficulty
1: Can be easily done by teenagers
2: Can be done by science teachers
3: May require a more experienced teacher

Safety
1: Minimal safety procedures required
2: Some safety procedures required to perform safely
3: Only to be attempted with adequate safety procedures and trained staff

Back to Top

© 2018 ScienceDemos.org